package thread;

import java.util.HashMap;

/**
 * @author: feiwang_6
 * @create: 2020/7/23 19:31
 * @description: 多线程交替打印
 */
public class ThreadsAlternatePrint {
    
    
    public static void main(String[] args) {
        HashMap<Integer, String> map = new HashMap<>();
        map.put(1, "1");
        map.size();
        
    }
}
